Vise.



No; 39,039. PATENTED DEC. 18, 1906;

. w. A.- SGHENDK.

VISE;

APPLICATION nun APB.19. 1906.

3 SHEETS-SHEET 2.

. Snow-Jot may/262.2%;

Witneaseb atizo mwq ordinary manner through the medium of the screw. When the nuts are in engaging position, the inner arms of their lugs extend downwardly in a true vertical plane, while the outer arms of said lugs project oppositely at an oblique angle thereto and in divergent relation, as clearly shown in Fig. 4, the slots 26 therein, which conform to the shape of the lugs, being correspondingly arranged, so that their obli ue portions overlap one another. Exten ing through an opening 28, formed in the wall 6 below the screw and above the pivot-bolts 27, is a nut-actuating rod 29, which passes through the slots 26 in the lugs and is suspended at its front and rear ends from links 30, carried by the heads 9 and 11, the forward end of the rod supporting an operating device comprising a depressible handpiece 3 1, disposed upon the for ward end of the rod between the sleeve 14 and head 9 and provided with a stirrupshaped body portion 32, the arms of which straddle or extend downward on opposite sides of the screw and are joined at their free ends and fastened to the rod. Normally the links 30 project at a downward and forward angle, as shown in Fig. 3, and are adapted when the handpiece 31 is depressed to be swung to a vertical position, thereby de pressing the rod 39 and giving it a rearward sliding movement. As shown in Fig. 4, when the nut-sections 23 are in engagement with the screw the rod 29 lies in the upper offset portions of the slots 26 in the lugs 24 and 25, thereby locking the nut-sections against movement, so that when the rod is depressed in the manner described it will be forced downwardly in said slots and engage the walls thereof, and thereby swing the lugs outwardly or laterally. This action will throw the nut-sections 22 and 23 out of engagement with the screw 13, and thereby unlock the sliding frame, permitting the same to be slid rearwardly to adjust the movable jaw to engage the work, as will be readily understood. This operation, it will be clear, may be performed byemploying one hand to de ress the handpiece 31 and using the other and to place the work in the desired position between the jaws of the vise, thus enabling the operator to perform this adjustment in a sfrnple and convenient manner. This quick adjustment of the movable jaw is employed to bring it into engagement with the work and expedite the adjusting operation, and after the jaw has been so adjusted the handpiece 31 is released, thus permitting the rod 29 to swing back to its normal position. In so swinging back the rod will'move upwardly in the slots 26 in the lugs 24 and 25 and restore said lugs to their normal position, thereby again throwing the nut-sections into engagement with the screw, permitting the latter to be turned, by means of its actuatinghandle 15, to adjust the jaw for finer adjustment to clamp the work firmly against the fixed jaw 2.

It will be observed that the lugs 24 and 25 with their peculiar form of slots constitute, in effect, and perform the function of cams or eccentrics, which are operated through the movement of the rod 29 to throw the nutsections into and out of engagement with the screw. This simple form of nut-operating means reduces the cost of construction over existing devices to a considerable extent and enables the device to be cheaply manufactured.

In the modification of the invention shown in Figs. 7 to 10, inclusive, the nut-sections 22 and 23are provided with straight depending lugs 24 and 25, pivotally mounted at their lower ends upon a common pivot-pin 27, and said lugs are formed with. angular slots 26, corresponding in form to the slots 26 shown in Fig. 4, except that the obliquely or angularly projecting ends of these slots are located at the upper ends of the lugs. The nut-sections 22 and 23 are further provided at their upper ends with lugs or cars 22 and 23, socketed to receive the ends of an expansive spring 23", the terminal portions of which are suitablyattached to said lugs, so that the spring will normally act by expansion to force the nut-sections apart and when compressed by the closing of said nut-sec tions will fold. into the sockets and permit the nut-sections to lie closely to ether. By this construction the downwar and rearward movement of the actuating-rod 29 willcanso the nut-sections to be closed against the resistance of the s )ring 23", while upon the release of said ro the spring will expand and restore the nut-sections and rod to their normal positions. The rod is provided at its forward end in this embodiment of the in vention with a hook-shaped finger-piece 31., lying below the forward end of theactuatingscrew, and the supporting-links 30 are so arranged that an upward movement of the finger-piece will cause the rod to swing u wardly and rearwardly, thereby to close t 1e nut-sections.

Having thus described the invention, what is claimed as new is 1. In a vise, the combination of jaws, one movable toward and from the other, a sliding frame carrying the movable jaw, a screw for operating said. sliding frame, a sectional nut for locking said. screw against movement, the sections of the nut being provided with camslots, and an actuating device movable in' said slots to effect the movement of the nutsections into and out of engagement with the screw.

2. In avise, the combination of a stationary frame carrying a fixed jaw, a sliding frame carrying a cooperating jaw, a screw j ournaled in the sliding frame and movable through the stationary frame, a sectional nut,

frame oarryinga cooperating jaw,a screw.

f j ournaledain' the, slidingT frame and movable through the's'tationary lugs carrying the nut-'seeti ons- 'andpivoted to I ,1 the stationary frame, said lugs being prov ded (with-angularslots, a rod extending through "said slots andoperati've therein'for swinging said lugs-t'o throwthe nut-seotionsinto and 7' ame, asectional nut,

55 I out of engagement with the screw, links sus-' 'pending'said rod'from theslidingframe, and a 20 means LQIIn avise, the combination of a station jary" frame; carrying a fixed, jaw," a sliding gframezearryinga cooperating jaw, a screw l. .ig.'journaled' in jthe slidin frameand movable,

: .throughthestationary rame, a sectional nut,

lugsearryingthenut sections and pivoted to the *stationaryframe',isaid lugs being pro- 43o or swinging said rod upon the'links to ,throwvthenul -8801310118 into and out of en- 'g'agementwithfthe screw. i

means for movablysup orting "the rod from. the sliding frame, and a .handpieee' conneoted tosaid rodand arranged in juxtaposition to the movable jaw.

153111 a vise, the combination of a stationary frame Joarrying a fixed jaw, amovable jaw slidably supported bysaid frame, a screwshaft for actuating themovable jaw, a split 'nut'earried by the movable jaw and comprising pivotedsections adapted to engage the screw-shaft to loek the same'thereto, said sections'being provide'dwith angular slots,

an actuating-rod passing through and movable in said slots,: and means for aotuating the rod.

In a vise, the combination of a station arygframe provided with a-fixed jaw, a movable jaw, a screw-shaft carried loy the frame for operating thesaid movable jaw, a split nut carriedby the movable jaw and comprising" sections pivotally. mounted and adapted toengage the screw-shaft,'said sections" being formed with angular slots, .a

spring for holding the nut-sections open, and 7 means ooacting" with said 'slotsto close the nut-sections against the resistance ofsaid spring.

In testimony whereof I affix my signature I 7 'inpresenoe of two witnesses. vided with angular slots, a rod extending throughsaid slots and operative therein for swingingsaid lugs to throw the nut-sections into and out of engagement with the serew,

'J, A. omen; 

